Foldable pipe welding local micro-environment regulation shed

Abstract

The utility model discloses a kind of foldable pipeline welding local microenvironment regulation and control shed, including dismounting support and storage component, storage component includes the storage box of screwing in the one end of dismounting support, the clamping block of screwing in the outside of storage box, the storage slot of opening in the upper end of storage box, the isolation block of welding in the bottom surface of storage slot, the first spring of being fixed in the upper end of isolation block, the cover plate of being fixed in the end of first spring, cover plate is T type and its horizontal section lower surface and storage slot upper mouth along adhere to form sealing compression surface;First spring and isolation block jointly constitute one-way pop-up mechanism, for after releasing the clamping block location makes cover plate automatically rise, to slide out along the storage slot axial whole by connecting lacing drag fire-retardant waterproof cloth by the way.The utility model integrates support, storage, unfolding function in one, single person can complete unfolding or folding, there is no loose parts on site, transportation volume is small, high reusability, suitable for local microenvironment closure and protection when field pipeline girth weld construction.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment for pipeline welding, and in particular to a foldable control shed that can be quickly deployed or retracted on the construction site and temporarily closed and controlled to regulate the local microenvironment of the welding area. Background Technology

[0002] Construction sites for pipeline circumferential welds are mostly located in outdoor or semi-outdoor environments, where wind speed, dust, and humidity vary greatly, making it difficult to meet the welding process's requirements for a locally clean, low-wind-speed, and dry environment. To reduce environmental interference, a temporary on-site assembly method is often used: steel pipes or steel reinforcement frames are temporarily assembled first, and then tarpaulins are manually spread out and tied at multiple points to create a simple enclosed space around the weld.

[0003] The traditional method has the following obvious shortcomings in practical applications: ① The frame, tarpaulin, and fasteners are stored separately, requiring multiple people to work together to complete steps such as stretching, aligning, and binding when unfolding, resulting in long preparation time and high labor intensity; ② After folding, the poles are of varying lengths, the tarpaulin is folded irregularly, the overall volume is large, and the parts are scattered, making transportation and relocation inconvenient; ③ During repeated erection, the tarpaulin is prone to friction with the sharp frame, and frequent handling can easily cause damage, leading to a shortened service life and high replacement costs; ④ Although a small number of quick-assembly tents or folding tents have appeared in the existing technology, their frames and tarpaulins are still set separately, and they are not adapted to the special working condition of pipe ring welds, making it impossible to form a tight seal on the outer perimeter of small-radius curved surfaces, resulting in limited wind and dust protection; ⑤ There is a lack of an integrated storage structure, and accessories still need to be carried and counted separately on site, failing to fundamentally solve the problems of "scattered, slow, and easily damaged".

[0004] Therefore, there is a need for a local microenvironment control device that integrates support, storage, and deployment functions, can be quickly operated by a single person, and is easy to reuse, in order to improve the construction efficiency and welding quality of field pipeline welding. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a foldable pipe welding local microenvironment control shed, which solves the technical problems of time-consuming cloth pulling and cumbersome folding in the prior art by pre-installing the bracket and flame-retardant waterproof cloth in the same storage box and using the spring-push plate-tie linkage mechanism to realize the one-click pop-out function.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: A foldable pipe welding local microenvironment control shed includes a disassembly bracket and a storage component. The storage component includes a storage box screwed to one end of the disassembly bracket, a locking block screwed to the outside of the storage box, a storage groove in the center of the upper end of the storage box, an isolation block welded to the center of the bottom surface of the storage groove, a first spring fixed to the center of the upper end of the isolation block, and a cover plate fixed to the end of the first spring. The cover plate is T-shaped, and the lower surface of its horizontal section fits against the upper edge of the storage groove to form a sealing and pressing surface. The first spring and the isolation block together constitute a one-way pop-out mechanism, which is used to automatically lift the cover plate after the locking block is released, thereby pulling the flame-retardant waterproof cloth along the axial direction of the storage groove through the connecting strap, eliminating the need for manual cloth pulling and alignment.

[0007] Furthermore, the storage component also includes a second spring fixed to the side of the bottom surface of the storage groove and a push plate fixed to the upper end of the second spring. The upper surface of the push plate is in direct contact with the lower surface of the flame-retardant waterproof cloth so as to push the flame-retardant waterproof cloth simultaneously when the first spring rises.

[0008] Furthermore, the storage component also includes a spring seat that clamps and fixes to both ends of the first spring and the second spring. The spring seat is a closed annular seat, and its inner diameter is interference-fitted with the corresponding outer diameter of the spring to prevent the spring from shifting laterally.

[0009] Furthermore, the spring seat is welded to the isolation plate and the cover plate, and the spring seat is also welded to both ends of the ground side of the storage groove and the center of the lower end of the push plate, thereby forming a three-point positioning structure of spring-seat-component.

[0010] Furthermore, the storage component also includes a connecting strap clamped in the middle of the push plate and a flame-retardant and waterproof cloth connected to the end of the connecting strap. The flame-retardant and waterproof cloth is folded and placed in the storage slot, and its edge is provided with a drawstring for quick gathering.

[0011] Furthermore, it also includes a quick-folding component, which includes a hinge screwed to the upper side of the storage slot and a pressing plate screwed to the other side of the hinge; the pressing plate is L-shaped, and when the short side of the L-shaped pressing plate is flipped downward, it presses against the horizontal section of the cover plate to keep the flame-retardant waterproof cloth in the stored state.

[0012] Furthermore, the gathering rope continuously passes through the edge loop of the flame-retardant and waterproof fabric and forms a pull-out lock at the end. The gathering rope is a high-temperature resistant aramid rope.

[0013] The working principle of this utility model is as follows: This utility model integrates the three functions of "support-storage-unfolding" into a foldable module. ① In the stored state, the flame-retardant waterproof cloth is pre-folded and placed in the storage slot. The T-shaped cover plate is pressed tightly by the L-shaped extrusion plate, and the first and second springs are in a compressed state. The entire module is screwed into the disassembly bracket as one piece, with no loose parts. ② When operation is required, simply move the locking block to release the limit. The first spring immediately pops the cover plate upward, and the second spring simultaneously pushes the push plate. The push plate pulls the flame-retardant waterproof cloth along the axial direction of the storage slot through the connecting strap, covering the outer perimeter of the pipe weld in one step, forming a local sealed space. ③ After the operation is completed, pull the retraction rope to press the cloth back into the storage slot, flip the extrusion plate to press the cover plate again, and the springs return to the compressed state, completing the "one-click retraction". The disassembly bracket can be quickly disassembled for easy transportation.

[0014] The on-site single-person operation process is as follows: ① Unfolding: Place the disassembled bracket around the pipe → lock the bracket → move the locking block → the cover plate rises automatically → the fabric is pushed out synchronously → pull the edge to close the shed → start welding; ② Closing: Pull the gathering rope → the fabric falls back into the storage groove → flip the extrusion plate to press the cover plate → loosen the bracket lock → remove the bracket → transport the whole thing.

[0015] The positive and beneficial effects of this utility model are as follows: 1. Integrated design: The support frame, tarpaulin, and elastic elements are assembled into modules before leaving the factory, eliminating the need for on-site alignment and binding. One person can complete the deployment in two steps, significantly shortening preparation time.

[0016] 2. Scattered parts: No small parts are separated during the unfolding and folding process, avoiding on-site loss and facilitating transportation.

[0017] 3. High reusability: The spring seat is closed and positioned, so the spring will not move during transportation; the edge of the tarpaulin is protected by the tie rope, reducing wear and extending its service life.

[0018] 4. Adaptable to curved pipe surfaces: The screw connection position between the storage box and the disassembly bracket is adjustable, which can quickly adapt to different pipe diameters, forming a wall-hugging seal, effectively reducing wind speed and blocking dust, and providing a stable microenvironment for welding. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the front structure of the present utility model; Figure 2 This is a schematic diagram of the opening structure of the storage box of this utility model; Figure 3 This is a schematic diagram of the relevant structure of the storage slot of this utility model; Figure 4 This is a schematic diagram of the spring seat structure of this utility model.

[0021] The attached diagram lists the components represented by each number as follows: 10. Disassemble bracket; 20. Storage box; 201. Locking block; 21. Storage slot; 22. Isolation block; 23. First spring; 231. Cover plate; 24. Second spring; 241. Push plate; 25. Spring seat; 26. Connecting strap; 27. Flame-retardant and waterproof cloth; 30. Hinge; 31. Extrusion plate; 32. Tie rope. Detailed Implementation

[0022] The present invention will be further explained and described below with reference to the accompanying drawings and specific embodiments: Example 1: A foldable pipe welding local microenvironment control shed: A. Overall Layout (see...) Figure 1 ): The foldable pipe welding local microenvironment control shed mainly consists of two parts: a disassembly bracket 10 and a storage component. The disassembly bracket 10 is made of segmented aluminum alloy round tubes, which are connected end to end by quick-locking buckles to form a "door"-shaped or ring-shaped support frame around the pipe. The storage component is screwed to the end of the disassembly bracket 10 through the threaded sleeve on the side wall of the storage box 20, becoming the fixed end plate of the frame and undertaking all the unfolding and folding functions.

[0023] B. Assembly of storage components (see...) Figure 2 , Figure 3 ) 1. The storage box 20 is a rectangular shell made of steel plate welded together. The upper edge is machined with a sealing chamfer to make line contact with the lower surface of the horizontal section of the cover plate 231 and press it tightly to achieve a dustproof effect.

[0024] 2. The isolation block 22 is welded to the bottom of the storage groove 21 in the center, dividing the groove cavity symmetrically into left and right chambers to prevent the flame-retardant waterproof cloth 27 on both sides from crossing and wrapping when folded; the top surface of the isolation block 22 is machined with countersunk holes to position the lower end of the first spring 23.

[0025] 3. After the first spring 23 is inserted into the countersunk hole, its top end is screwed to the central threaded hole of the T-shaped cover plate 231 to form a detachable elastic component; the gap between the outer contour of the horizontal section of the cover plate 231 and the upper edge of the storage groove 21 is ≤1mm, which ensures smooth sliding and can form a sealing surface when pressed.

[0026] 4. There are two second springs 24, symmetrically arranged on the short sides of the bottom surface on both sides of the isolation block 22; each spring is screwed to a push plate 241 at its top. The width of the push plate 241 is slightly smaller than the width of the groove cavity, so it can slide up and down in the groove without rotating. The upper surface of the push plate 241 is in direct contact with the lower surface of the flame-retardant waterproof cloth 27, so as to realize the synchronous lifting of the spring, the push plate, and the cloth.

[0027] 5. The spring seat 25 is a closed annular steel sleeve with an inner diameter that is 0.1 to 0.2 mm over the corresponding outer diameter of the spring. Both ends are welded to the isolation block 22 / cover plate 231 and the bottom surface of the storage groove 21 / push plate 241 respectively to form a three-point positioning structure, so that the spring does not move laterally during transportation.

[0028] 6. The connecting strap 26 is made of high-temperature resistant aramid flat strap. One end is pressed and riveted to the groove in the middle of the push plate 241, and the other end is sewn to the stainless steel hanging ring on the edge of the flame-retardant waterproof cloth 27, so that when the push plate 241 rises, the cloth is pulled out as a whole by the flat strap.

[0029] 7. The flame-retardant and waterproof fabric 27 has a three-layer composite structure (fiberglass base fabric + flame-retardant PVC coating + waterproof membrane), with aramid cable loops sewn around the edges, and a drawstring 32 threaded inside the cable loops; the folded height of the fabric is controlled within 2 / 3 of the depth of the storage groove 21 to ensure sufficient pop-out stroke.

[0030] C. Quick-folding component (see...) Figure 2 , Figure 3 ) 1. The fixed leaf of the hinge 30 is screwed to the upper side of the storage groove 21, and the movable leaf is screwed to the long side of the L-shaped extrusion plate 31; the short end of the extrusion plate 31 is covered with a rubber wear-resistant sleeve, which is used to form a line contact and press against the upper surface of the horizontal section of the cover plate 231 when it is flipped downward.

[0031] 2. The drawstring 32 is connected end to end to form a closed loop and continuously passes through the edge loop of the flame-retardant and waterproof cloth 27; the rope body is made of aramid fiber, which is resistant to high temperature ≥500℃, and the pull end is equipped with a spring lock buckle, which can be tightened with one hand.

[0032] D. Work process: Unfolding: ① Assemble and lock the disassembled bracket 10 around the outer wall of the pipe; ② Pull out the locking block 201; ③ Release the first spring 23, and the cover plate 231 rises; ④ Push the push plate 241 with the second spring 24; ⑤ The push plate 241 pulls the flame-retardant and waterproof cloth 27 out of the storage groove 21 through the connecting strap 26; ⑥ Lift the edge of the cloth to quickly hook the hanging ring with the bracket, forming a sealed welding space. The entire process can be completed by one person within 15 seconds.

[0033] Gathering: ① Unlatch the hanging ring; ② Pull the locking buckle of the gathering rope 32, and the fabric quickly gathers to the opening of the storage slot 21; ③ Gently press the cover plate 231, and the first and second springs compress simultaneously; ④ Flip the L-shaped extrusion plate 31 downwards, and its short side presses against the cover plate 231; ⑤ Insert the locking block 201 to restore the limit position; ⑥ Disassemble the bracket 10 to unlock it in sections, and the recycling is complete. Gathering time ≤ 20s, no parts scattered.

[0034] E. Reuse and maintenance: All metal surfaces are hot-dip galvanized; the inner cavity of the spring seat 25 is coated with high-temperature grease to ensure smooth operation after multiple compressions and releases; if the edge loops of the flame-retardant and waterproof fabric 27 show wear, they can be removed and replaced individually without the need for complete scrapping. After on-site cyclic testing, this invention exhibited no jamming or fabric damage after 50 unfolding and retracting cycles, meeting the requirements for repeated reuse.

[0035] The above embodiments only illustrate one specific implementation of this utility model. Any technical solution that combines "spring-push plate-belt linkage sliding out" and "L-shaped extrusion plate line contact pressing" falls within the protection scope of this utility model.

Claims

1. A foldable pipe welding local microenvironment control shed, characterized in that: The system includes a disassembly bracket (10) and a storage component. The storage component includes a storage box (20) screwed to one end of the disassembly bracket (10), a locking block (201) screwed to the outside of the storage box (20), a storage slot (21) opened in the center of the upper end of the storage box (20), an isolation block (22) welded to the center of the bottom surface of the storage slot (21), a first spring (23) fixed in the center of the upper end of the isolation block (22), and a cover plate fixed to the end of the first spring (23). (231) The cover plate (231) is T-shaped and its horizontal section lower surface fits against the upper edge of the storage groove (21) to form a sealing and pressing surface; the first spring (23) and the isolation block (22) together constitute a one-way pop-out mechanism, which is used to automatically lift the cover plate (231) after the locking block (201) is released, so that the flame-retardant waterproof cloth (27) is pulled out along the axial direction of the storage groove (21) by the connecting strap (26), saving the manual cloth pulling and alignment process.

2. The foldable pipe welding local microenvironment control shed according to claim 1, characterized in that: The storage component also includes a second spring (24) fixed to the side of the bottom surface of the storage slot (21) and a push plate (241) fixed to the upper end of the second spring (24). The upper surface of the push plate (241) is in direct contact with the lower surface of the flame-retardant waterproof cloth (27) so as to push the flame-retardant waterproof cloth (27) simultaneously when the first spring (23) rises.

3. The foldable pipe welding local microenvironment control shed according to claim 1, characterized in that: The storage component also includes a spring seat (25) that clamps and fixes the two ends of the first spring (23) and the second spring (24). The spring seat (25) is a closed annular seat, and its inner diameter is interference-fitted with the corresponding outer diameter of the spring to prevent the spring from shifting laterally.

4. The foldable pipe welding local microenvironment control shed according to claim 3, characterized in that: The spring seat (25) is welded to the isolation plate and the cover plate (231), and the spring seat (25) is also welded to both ends of the ground side of the storage groove (21) and the center of the lower end of the push plate (241), thereby forming a three-point positioning structure of spring-seat-component.

5. The foldable pipe welding local microenvironment control shed according to claim 4, characterized in that: The storage component also includes a connecting strap (26) that is clamped in the middle of the push plate (241) and a flame-retardant waterproof cloth (27) connected to the end of the connecting strap (26). The flame-retardant waterproof cloth (27) is folded and placed in the storage slot (21), and its edge is provided with a drawstring (32) for quick gathering.

6. The foldable pipe welding local microenvironment control shed according to claim 5, characterized in that: It also includes a quick-folding component, which includes a hinge (30) screwed to the upper side of the storage slot (21) and a pressing plate (31) screwed to the other side of the hinge (30); the pressing plate (31) is L-shaped, and when the short side of the L-shaped pressing plate is flipped downward, it presses the horizontal section of the cover plate (231) to keep the flame-retardant waterproof cloth (27) in the storage state.

7. The foldable pipe welding local microenvironment control shed according to claim 5, characterized in that: The gathering rope (32) passes continuously through the edge loop of the flame-retardant waterproof cloth (27) and forms a pull-out lock at the end. The gathering rope (32) is a high-temperature resistant aramid rope.

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